An infinitesimal eccentric rotational damping model for rolling resistance of circular particles
Journal
Proceedings of the 13th International Conference on Civil, Structural and Environmental Engineering Computing
ISBN (of the container)
9781905088454
Date Issued
2011
Author(s)
Abstract
This study proposes an infinitesimal eccentric and rotational damping (IERD) model to consider the rolling resistance of circle particles through DEM simulation. The mass center of circular particle is firstly slightly adjusted to eccentricity for the effectiveness of rotational spring. Then, a local rotational damping is adopted to dissipate energy in the rotational direction. Compared with the repose angle tests of rod assemblies, the IERD model is verified and the results are quite satisfactory on the small scale model tests. In addition, the simulations using other existing models were also carried out and compared. In conclusion, the particle rolling simulation using the proposed model appears to approach the actual particle trajectory, making it useful for applications. © Civil-Comp Press, 2011.
Event(s)
13th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2011
Subjects
Distinct element method
Eccentric circle model
Rotation damping
Description
13th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2011, 6 September 2011 through 9 September 2011, Chania, Crete
Type
conference paper